Title:
MOTOR DRIVE DEVICE AND CONVEYING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/208758
Kind Code:
A1
Abstract:
When switching from semi-closed control to full-closed control or from full-closed control to semi-closed control, position information held by a conveying system and a motor drive device, and a control method associated therewith, must also be switched. In order to resolve this problem, a scale position calculating unit (103) outputs a motor position (D4) acquired by a motor position acquiring unit (102) as a pseudo scale position (D7) converted to an external scale position (D3) acquired by a scale position acquiring unit (104), and outputs the external scale position (D3) acquired by the scale position acquiring unit (104) as an actual scale position (D6). A control position switching unit (105) outputs a control position signal (D2) on the basis of an output from the scale position calculating unit (103). A motor control unit (101) controls a motor (202) in such a way that the control position signal (D2) tracks a position command signal (D1).
Inventors:
MISHIMA MASASHI
IKEUCHI YOSHIAKI
IMADA YUSUKE
IKEUCHI YOSHIAKI
IMADA YUSUKE
Application Number:
PCT/JP2019/017881
Publication Date:
October 31, 2019
Filing Date:
April 26, 2019
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G05D3/12; H02P29/00
Domestic Patent References:
| WO2012164740A1 | 2012-12-06 | |||
| WO2016203614A1 | 2016-12-22 |
Foreign References:
| JP2002297241A | 2002-10-11 | |||
| JP2002278628A | 2002-09-27 | |||
| JP2009026144A | 2009-02-05 | |||
| JP2016155144A | 2016-09-01 | |||
| JP2000333484A | 2000-11-30 | |||
| JP2009201169A | 2009-09-03 |
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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